Passenger Elevator Factory introduced the reasons for elevator accidents. One is the unsafe behavior of people, and the other is the unsafe state of equipment. The two are mutual cause and effect.

Human unsafe behavior may be caused by insufficient education or management; the unsafe state of equipment is caused by long-term improper maintenance. In the two major factors that cause accidents and equipment, people are the first, because the design, manufacture, installation, maintenance, and management of elevators are all man-made.

Human unsafe behavior, for example, the operator short-circuits the elevator electrical safety control loop to make the elevator in an unsafe state. This unsafe elevator causes personal injury or equipment damage. The specific causes of each accident are different, which may be multifaceted, and even social and historical reasons can be traced.